Determine if current PowerShell Process is 32-bit or 64-bit?

MagicAndi picture MagicAndi · Dec 21, 2011 · Viewed 70.5k times · Source

When running a PowerShell script on a x64-bit OS platform, how can you determine in the script what version of PowerShell (32-bit or 64-bit) the script is running on?

Background
Both 32-bit and 64-bit versions of PowerShell are installed by default on a 64-bit platform such as Windows Server 2008. This can lead to difficulties when a PowerShell script is ran that must target a specific architecture (i.e. using 64-bit for a script for SharePoint 2010, in order to consume the 64-bit libraries).

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Answer

Shay Levy picture Shay Levy · Dec 21, 2011

If you're shell is running on .NET 4.0 (PowerShell 3.0):

PS> [Environment]::Is64BitProcess
True